Loose-leaf binder



L. W. BERGIVIAN.'

LOOSE LEAF BINDER. ArPucmoN man am. 2'9.'.1sz1.

Lezmee.

Patented Sep .a construction whereby sheets of various sizes and having perforationsspaced at va- Patented Sept. 19, 1222.

hihi@ carica.

LOOSE-LEAF BINDER.'

Application iled March 29, 1921'. Serial No. 456,555.

To all whom t may concern Be it known that Louis W. BERGMAN, a citizen of the United States of America, residing at New York, in the county of New York and State of New York, has yinvented certain new and useful Improvements in Loose-Leaf Binders, of which the'following is a specification.

The present invention relates toloose leaf binders for use with perforatedsheets or leaves. t

The object of this invention is to provide rious distances can be bound together.

With this and other objects in view my invention consists of a socket adapted to be permanently fixedtothef cover or folder of a loose leaf book suchn as a ledger or the like, and individual leaf holders removably and adjustably borne in said socket so that the number of individual holders in the socket may be regulated according to the number of perforations in the sheets used and the holders may be adjusted relative to one another according to the particular spacing of the perforations in the sheets.

My invention will be more fully understood by reference to the accompanying drawing in which similar reference characters denote corresponding parts and in which Figs. 1 and 2 are respectively top plan views of a closed and open loose leaf book equipped with my new device; Fig. 3 is an enlarged top plan view of the device proper y shown attached to one of the covers of the book; Fig. 4 is a cross section on line 4 4 of Fig. 1; Fig. 5 is a section on line 5-5 of Fig. 1; Figli is a cross section on yline 6 6 of Fig. 2; Fig. 7 is a plan view of the inner face of the upper cover; Fig. 8 is a cross section similar to Fig. 4 of a modified construction; Fig. 9 is a plan view of a part of the inner face of the upper cover showing a modification of a detail; Fig. 10 is a cross Ysection on line 10-10 of Fig. 9, and Fig. 11

is a cross section on line 11`11 of Fig. 9; and Fig. 12 is a perspective View of the in dividual binder.

Referring to the drawing, the binder coinprises a socket 10 preferably made of a strip of metal which is bent .upon itself at its longitudinal Vedges to form opposite longitudinal grooves 10. 11 kdenotes individual members or holders which are adapted to be adjustably and removably borne in `the socket4 .10, so that the number and spacing thereof may be easily regulated to conform with those ofthe perforations in the sheets used. In thepresent embodiment 'ofmy invention the members 11 each consist of a base portion 11 made to fit snugly in the grooves 10 vof the socket 10, anda hook shaped portion 112 projecting upwardly from Athe base. The grooves 10?` of the metal strip 10 are open at their ends, 102 to allow .the `insertion orremoval of the aforenamed individual 4members 11 into and fronrthe socket 10. Y f a vThe kindividual binding members 11 when placed with their bases llinto the grooves 10. ofthe socket willbe. frictionallyA enf gaged thereby, so that they will be retainedA in working position7 but can be shifted-lon gitudinally;v toxadj ust their .spacing in conformity with that of the perforations in the sheets.

The socket 10 is adapted to be permanently fixed to the inner face of a folder or cover of a loose leaf book.

In'the present example I have shown a loose leaf book consisting of two separable covers 12, 13 which near the rear ends have foldable sections 12', 13.

The socket 10 is adapted to be fixed longitudinally ofand adjacent to the rear edge of the foldable section 13 ofthe lower cover and the removable upper cover is provided with means for engaging the free ends of the hook shaped projections 112 so as to prevent the sheets from slipping ofi' the individual binding members 11.

For the engagement of the free ends of the hooks 11 and for the connection of the two covers the following construction is employed The body portion of the socket 10 is extended longitudinally at one of its ends as at 103 and is formed with a vertical and a horizontal bend. The horizontal bend is directed inwardly or toward the socket and constitutes a tongue 104. On the inner face of the foldable section 12" of the upper cover, a longitudinal groove or slot 122 is provided which when thev cover is applied is adapted to engage the perpendicularly bent ends 113 of the hooks, thereby preventing the sheets engaged by theV individual binders 11 from slipping off.

At each end of the foldable section 12 of the upper cover, I provide grooved members or pockets 14, of 'which'- the vonewlocated at *such as .snappers 17 may the end adjacent to the tongue is adapted.

to engage the latter. A detachable Ush'aped tongue is adapted to be inserted intoy the Instead of the slot 122v and separatemem# bers 14 the'foldable ysection 12 of' the Cover 4- 12 may be `provided.With a member 16 made "L of af'single strip lof'metalv bent upon itself at its longitudinal edges togform-a groove 16"y orthe engagement.' of the ends .113 of the-- hooks 11and sockets 162or" the engagement l of the `tongues 10L and 15. f Y

yThe tongues maybe retained in the .pookn4 ets y14 and 10 by friction or suitable means be used to secure their engagement;y

In order to close the open'ispaee 18 formed.

between the two covers y12, 13, the upper' cover may be provided With a rear extena.

y v'sion of flexible material to y:form a flapl 19 Whiol1.may: engage a pocket 20 in Kthe -lovven cover when the two eoversare oonneetedtoy lone another; and serve agaback, v

I claim:

1. A' loose leafbinder,-oompr ising a coverr a member formed With opposite groove-s, laterally "curved leaf holders having flat basesfrietionally engaging said grooves, the

free ends'vot said leaf holder being perpenT di'eula'r to said bases7 an auxiliary cover hava slot to engage said freel ends of the leaf holders, and means between saidtvvo together.

y 2. A loose leaf bindeignornpri'singn Cover," a memberformed Witn/ opposite grooves and anfextension at one end, leaf holders `having covers' for cletaohably connecting the latter flat bases frictionally engaging sai-d groove,

anl auxiliary Cover *havingv a slot' to; engage lthe free ends `ot v'sa'id'leaff holder,'and end poelets,` one of sa'idfpooliets beingfadapted v to removably engage the saidzextension, and a detachable` member adapted to engageA the v. other'pooketiofsaid auxiliary Cover and-the connecting the tv vov overs l.

saidv grooves for together.

,In testimony 'Whereof'l affix vmyy signature- 

